Lighting fixture



0. C. DOSE LIGHTING FIXTURE Filed Oct. 20 1920' Patented Oct. 16, 1923.

fixtures of that ty UNITED STATES CHARLES C. DOSIQOI' SEATTLE, WASHINGTON, ASSIGNOR TO PEBFECLITE MANUFAC- TUBING CO.

LIGHTING FIXTURE.

' Application filed 0mm 20-, mo. lerial no. use.

To all whom it may concern:

Be it known that I, Came C. Doss, a citizen of the United States, and resident of the city of Seattle, county of King, State of Washlngton, have invented certain new and useful Improvements in Lighting Fixtures, of which the following is a specification.

This invention relates to improvements in lighting fixtures, and more particularly to characterized as being dust proof, and w erein a complete fixture consists of a closed cover portion, a translucent bowl sus nded therefrom in a dust roof connectlon, a reflector plate that is ocated within the cover and an incandescent electric lamp that is placed within the bowl beneath the reflector; all of which is suspended by the lamp cord.

The prmcipal ob ect of the present invention is to provide a fixture of the above character, that will be neat and attractive in appearance, which will be dust proof, and wherein the several; parts are so connected that they may be eas1ly and quickly assembled or disasembled.

Another object of the invention is to provide means whereby a circulation of air is permitted about the reflector and within the bowl for the purpose of preventing overheating by the lamp.

A further object of the invention resides in the means and manner whereby the bowl is supported from the cover portion.

In accomplishin these and other objects of the invention, have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein Figure 1 is a view, partly in elevation and partly in central, vertical section, of a lighting fixture embodying the present invention.

igure 2 is a detail, perspective view of the cover portion, the reflecting plate and the locking ring whereby the bowl is suspended from thecover; the parts being shown in dis-assembled relation.

Figure 3 is an enlarged sectional view, taken substantially on the line 3--3 in Figure 1, showing the means for yielding y holding the locking ring in functional pos1- tion on the cover.

Figure 4 is an enlarged detail sectional view, of a part of the cover, the locking ring, the reflector and bowl in assembled relation.

-Referring more in detail to the several views of the drawings, wherein like reference numerals designate like parts- 1 designates the cover portion of the tie vice, this preferably being of metal, of a somewhat conical shape and provided at its apex with a small aperture 2 for receiving the lam cord 3 whereby electric current is supplied to the lamp 4 and also whereby the fixture may .be suspended.

At its lower periphery the cover is provided with a flange 5 and seated within this is a reflector 6, which is of such character as to cast the rays of light from the lamp 4 downwardly. This reflector consists of a single plate provided centrally with an opening 7 through which the lamp socket 8 may extend the opening in the reflector 6 being of such size as to frictionally engage the socket when inserted and thereby serve to anchor the bulb 4 against displacement and about the opening 7 with a plurality of small apertures 9 whereb a circulation of air within the bowl an cover is permitted.

Sus'ended from the cover portion and enclosing the lamp 4, is a closed, translucent bowl 10. This is provided about its upper edge with an out-turned peripheral flange 11 which is adapted to fit within the flange of the cover 1 and to be locked therein to support the bowl and reflector plate 6 by means of a locking ring 12 which is removabl applied to the flange 5.

e ring 12 is of such size that it will snugly receive the flange 5, and at its lower edge has an outwardly pressed annular groove, or channel, 14 and an inwardly extending annular rim 15 which is adapted to supportingl engage the flange 11 of the bowl 10. 'I he ring is locked in place, when applied to the cover, by means of a bayonet joint connection; the flange 5 of the cover having a plurality of bosses 16 pressed outwardl therefrom which are adapted to be moved downwardly through cooperatively located grooves 17 in the ring 12 and into the channel 14 at its lower ed whereupon. b partially rotating the rmg on the cover, t e parts will be securely locked together. I

Stop members 18 are fixed in the channel 14 at one side of the junction with the grooves 17, and at the opposite side are in clined wedge pads 19 of leather, or the like, against which the bosses 16 may be turned to ieldin ly hold the parts in functional, an locke relation. 7 I

By this articular construction it will be seen that t e cover and bowl are joined to gether in a dust proof connection and that the bowl and reflector are held in place by a locking ring that can be easily1 and quickly removed to permit access to t e lamp and reflector when .necessa 10 It is also apparent that the perforations 9 of the reflector will permit a certain desired circulation of air within'the cover and bowl which will prevent overheating of the parts adjacent the lamp.

Having thus described 111 invention; what I claim as new therein, an desire to secure by Letters Patent is:

A lighting fixture of the character described comprising a somewhat conically 2 shaped cover portion rovided with a downturned peripheral an e having bosses I pressed outwardly there rom, a translucent ing ring fitted about the cover flange, having bayonet slots for receiving bosses of the cover flange to removably secure the ringto the flange and having an in-turned rim at its lower edge whereupon said bowl flange rests to-support the bowl from the cover; said boss receiving channels in said ring having yieldable means secured therein against which said bosses may engage to irictionall and yieldingly retain the ring in locking re ation.

Signed at Seattle, Washington, this 15th day of October, 1920. p

I CHARLES C. DOSE. 

